You must have a graphics card with drivers that support Microsoft DirectX Raytracing to run the 3DMark Port Royal benchmark.

OSWindows 10, 64-bit with October 2018 Update (version 1809)
Processor1.8 GHz dual-core with SSSE3 support
GPUDirectX 12 with DirectX Raytracing support
Memory4 GB RAM
Video Memory6 GB
Storage0.8 GB free disk space